Wing angle monitoring device

Abstract

The utility model discloses a wing angle monitoring device, which relates to the technical field of wing angle monitoring and comprises an acquisition module, a signal amplification module, a single-chip microcomputer module, a WIFI (wireless fidelity) module and an upper computer module. The output end of the acquisition module is connected with the input end of the signal amplification module, the output end of the signal amplification module is connected with the input end of the single-chip microcomputer module, the output end of the single-chip microcomputer module is connected with the input end of the WIFI module, and the WIFI module is in bidirectional connection with the upper computer module. According to the utility model, the resistance values of the divider resistors are changed to measure large resistance values in different resistance value ranges, data are converted into angles through the physical relationship between the resistance values and the angles, and finally, the data are conveniently processed in a Python upper computer through a matplotlib library and a pandas library, and the modeling of the three-dimensional curved surface of the whole wing is visually completed. Therefore, the deformation condition of the wing can be monitored through the bending angle and direction, the deformation of the wing can be accurately and quantitatively measured, and the condition of the wing can be conveniently monitored in real time.

Description

Technical Field

[0001] The utility model relates to the technical field of wing angle monitoring, in particular to a wing angle monitoring device. Background Art

[0002] Smart skin technology plays an important role in the research of aircraft skin. The skin is the outer covering layer of the aircraft surface, which is used to provide structural support, aerodynamic shape and protect the internal system. The development of smart skin technology aims to improve the performance, safety and maintenance efficiency of the aircraft, and realize real-time monitoring, adjustment and optimization of the skin structure, thereby improving the performance and safety of the aircraft. Therefore, angle measurement has become an indispensable research topic for smart skin.

[0003] By installing a flexible angle sensor on the smart skin, the working principle of the sensor is based on the piezoresistive effect. The reduction of the gap between the conductive part inside the sensor will cause the contact resistance between the sensing layer and the electrode to change. In addition, the distribution and contact state of the conductive material inside the sensing layer will also change, further affecting the resistance of the sensor. Therefore, by monitoring the change in resistance, the physical relationship between the resistance value and the angle can be converted into angle data, thereby realizing the detection of the wing bending angle. Therefore, a wing angle monitoring device is proposed here. Utility Model Content

[0004] Technical issues solved

[0005] The purpose of the present invention is to make up for the deficiencies of the prior art and to provide a wing angle monitoring device. The present invention provides a wing angle monitoring device. The upper computer interface can display the angle changes of the aircraft and reflect the flight status of the aircraft, which is helpful to timely discover and respond to potential problems and ensure the safe flight of the aircraft.

[0006] Technical Solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wing angle monitoring device, comprising an acquisition module, a signal amplification module, a single-chip computer module, a WIFI module and a host computer module; the output end of the acquisition module is connected to the input end of the signal amplification module, the output end of the signal amplification module is connected to the input end of the single-chip computer module, the output end of the single-chip computer module is connected to the input end of the WIFI module, and the WIFI module is bidirectionally connected to the host computer module; the single-chip computer module comprises an A / D conversion module, a low-pass filtering module and a median filtering module, the output end of the A / D conversion module is connected to the input end of the low-pass filtering module, the output end of the low-pass filtering module is connected to the median filtering module, the output end of the median filtering module is connected to the input end of the WIFI module, and the input end of the A / D conversion module is connected to the output end of the signal amplification module.

[0008] Preferably, the input end of the acquisition module is connected to a flexible sensor array.

[0009] Preferably, each sensor of the flexible sensor array is connected in series with a resistor of a certain resistance value to form a voltage divider, and then connected to a high input impedance operational amplifier to form a voltage follower.

[0010] Preferably, the acquisition module is for collecting intelligent skin angle signals.

[0011] Preferably, it also includes a power module, which is connected to the acquisition module, the signal amplification module, the single-chip computer module, the WIFI module and the host computer module respectively.

[0012] Beneficial effects:

[0013] Compared with the prior art, the wing angle monitoring device has the following beneficial effects:

[0014] The utility model measures large resistors in different resistance ranges by changing the resistance of the voltage-dividing resistor, converts the data into angles through the physical relationship between the resistance and the angle, and finally processes the data in a Python host computer through the matplotlib library and the pandas library and realizes visualization to complete the modeling of the three-dimensional surface of the entire wing, so that the deformation of the wing can be monitored through the bending angle and direction, and the deformation of the wing can be accurately and quantitatively measured, which is convenient for real-time monitoring of the wing condition. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a principle block diagram of the wing angle monitoring device of the utility model.

[0016] Figure 2 This is a specific collection principle diagram of the wing angle monitoring device of the utility model.

[0017] In the figure: DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-2As shown, the utility model provides a technical solution: a wing angle monitoring device, comprising an acquisition module, a signal amplification module, a single-chip computer module, a WIFI module and a host computer module; the output end of the acquisition module is connected to the input end of the signal amplification module, the output end of the signal amplification module is connected to the input end of the single-chip computer module, the output end of the single-chip computer module is connected to the input end of the WIFI module, and the WIFI module is bidirectionally connected to the host computer module; the single-chip computer module comprises an A / D conversion module, a low-pass filtering module and a median filtering module, the output end of the A / D conversion module is connected to the input end of the low-pass filtering module, the output end of the low-pass filtering module is connected to the median filtering module, the output end of the median filtering module is connected to the input end of the WIFI module, and the input end of the A / D conversion module is connected to the output end of the signal amplification module.

[0020] Please pay attention to Figure 2 The acquisition module is used to collect the angle signal of the intelligent skin. The input end of the acquisition module is connected to the flexible sensor array. Each sensor of the flexible sensor array is connected in series with a resistor of a certain resistance value to form a voltage divider, and then connected to a high input impedance operational amplifier to form a voltage follower. The formed voltage follower has high input impedance, low output impedance, and a voltage gain of approximately 1, which effectively improves the circuit's load capacity.

[0021] Please pay attention to Figure 1 , also includes a power module, which is connected to the acquisition module, the signal amplification module, the single-chip computer module, the WIFI module and the host computer module respectively, and the power module is used to power the acquisition module, the signal amplification module, the single-chip computer module, the WIFI module and the host computer module.

[0022] The ADC function of the main control chip STM32F407ZGT6 is used to read the change in sensor resistance, collect bending signals, convert analog signals into digital voltage signals, and pre-process the signals. The RXD and TXD of the main control chip STM32F407ZGT6 send and receive data respectively. The sensor data is transmitted to the WiFi module through these two pins, and the ESP8266WiFi module sends data to the host computer through TCP transparent transmission.

[0023] In the Python host computer, the matplotlib library and pandas library are used to process data and realize visualization to complete the modeling of the entire wing three-dimensional surface and display it in real time.

[0024] See also Figure 2,The acquisition principle of the utility model is line by line scanning. ,Based on the principle of time division multiplexing, the data acquisition system scans the sensor array line by line, and stores the data in the FLASH memory. After a set of data is collected, the data is ,packaged, and the individual sensor units are classified through subsequent ,programs.

[0025] The circuit plate making process adopted by the utility model is a flexible printed circuit board (FPC), and the FPC has the characteristics of being soft, thin, and bendable, and complements the intelligent skin.

[0026] Working principle: By changing the resistance of the voltage divider resistor, large resistors in different resistance ranges are measured, and the data is converted into angles through the physical relationship between resistance and angle. Finally, the data is processed and visualized in the Python host computer through the matplotlib library and pandas library to complete the modeling of the entire wing's three-dimensional surface. The deformation of the wing can be monitored through the bending angle and direction, and the wing deformation can be accurately and quantitatively measured, which is convenient for real-time monitoring of the wing condition.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wing angle monitoring device, characterized in that: It includes an acquisition module, a signal amplification module, a single-chip computer module, a WIFI module and a host computer module; the output end of the acquisition module is connected to the input end of the signal amplification module, the output end of the signal amplification module is connected to the input end of the single-chip computer module, the output end of the single-chip computer module is connected to the input end of the WIFI module, and the WIFI module is bidirectionally connected to the host computer module; the single-chip computer module includes an A / D conversion module, a low-pass filtering module and a median filtering module, the output end of the A / D conversion module is connected to the input end of the low-pass filtering module, the output end of the low-pass filtering module is connected to the median filtering module, the output end of the median filtering module is connected to the input end of the WIFI module, and the input end of the A / D conversion module is connected to the output end of the signal amplification module.

2. A wing angle monitoring device according to claim 1, characterized in that: The input end of the acquisition module is connected to the flexible sensor array.

3. A wing angle monitoring device according to claim 2, characterized in that: Each sensor of the flexible sensor array is connected in series with a resistor of a certain resistance value to form a voltage divider, and then connected to a high input impedance operational amplifier to form a voltage follower.

4. The wing angle monitoring device according to claim 1, characterized in that: The acquisition module is used to collect the intelligent skin angle signal.

5. The wing angle monitoring device according to claim 1, characterized in that: It also includes a power supply module, which is connected to the acquisition module, the signal amplification module, the single-chip computer module, the WIFI module and the host computer module respectively.

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